Actually fix the app_name protection
Actually fix the app_name protection

The previous "fix" just disabled the app_name protection for python3. Go
with Jens' suggestion (the easy route) of trying, and if that doesn't
work, retrying.

Change-Id: Ie4d1091b0f1fc6e1c9d9a2c935a458ea5ce55af3

openstack/python-openstacksdk,stackforge/python-openstacksdk,openstack/python-openstacksdk,openstack-infra/shade,dtroyer/python-openstacksdk,stackforge/python-openstacksdk,openstack-infra/shade,dtroyer/python-openstacksdk